#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main(int argc,char* argv[],char* env[])
{
    extern char** environ;
    int i = 0;
    for(i = 0; environ[i]; ++i)
    {
        printf("%d:%s\n",i,environ[i]);
    }
    
    return 0;
}
